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Question
What do you understand by the term ‘ultrasonic vibration’?
One Line Answer
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Solution
Ultrasonic vibrations are the vibration with a frequency greater than 20 KHz. Human ear cannot detect the ultrasonic vibration.
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The Speed of Travelling Waves - Factors Affecting Speed of Sound
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Chapter 5: Acoustics - Evaluation [Page 72]
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RELATED QUESTIONS
Mark the correct choice as
- Assertion: The change in air pressure affects the speed of sound.
- Reason: The speed of sound in a gas is proportional to the square of the pressure
Mark the correct choice as
- Assertion: Sound travels faster in solids than in gases.
- Reason: Solid posses a greater density than that of gases.
What are the factors that affect the speed of sound in gases?
